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, the paper analyzes the returns correlation, serial correlation and heteroscedasticity on the NSE All-share Index, Banking … descriptive statistics, autocorrelation function (ACF) and Ljung-Box Q (LB-Q) statistics, as well as the autoregressive … conditional heteroscedasticity Lagrange multiplier (ARCHLM) techniques in conducting the empirical analysis. Descriptive …
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Although the main interest in the modelling of electricity prices is often on volatility aspects, we argue that stochastic heteroskedastic behaviour in prices can only be modelled correctly when the conditional mean of the time series is properly modelled. In this paper we consider different...
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volatility specifications commonly adopted in the literature. Within this framework, we show that the standard heteroskedasticity-autocorrelation …
Persistent link: https://www.econbiz.de/10013291512
The literature on heteroskedasticity and autocorrelation robust (HAR) inference is extensive but its usefulness relies …
Persistent link: https://www.econbiz.de/10013293025